<div class="container">
    <?php echo validation_errors("<div class='alert alert-danger'>", "</div>"); ?>
    <form class="form-horizontal" method="post" enctype="multipart/form-data">
        <div class="form-group">
            <label class="col-lg-2 control-label">Insumo</label>
            <div class="col-lg-4">  
                <input type="text" class="form-control" name="insumo" id="insumo" value="<?=set_value('insumo')?>">
            </div>
        </div>
    
 
        <div class="form-group">
            <label class="col-lg-2 control-label"></label>
            <div class="col-lg-4">
                <button type="submit" class="btn btn-primary">Agregar</button>
            </div>
        </div>
        
    </form>
</div>
<script type="text/javascript">
    $(document).ready(function() {
        $("#insumo").focus();
    });
</script>